Product Overview

product-2560-1440

Intelligent Stainless Steel Woltman Flow Meter – Built for Heavy-Duty Water Measurement with Versatile Connectivity

This premium flow measurement solution is designed for pipelines requiring reliable performance in demanding conditions. The all-stainless steel body (available in 304/316/316L grades) ensures long-term durability against corrosion and mechanical stress, making it suitable for both clean and aggressive water applications. Operating on the Woltman principle, the meter uses a horizontally mounted helical turbine to achieve accurate readings across a wide flow range while maintaining minimal pressure loss. A key feature is its serviceable measuring insert, which can be removed for inspection or replacement without disturbing the pipeline connection . The meter is equipped with multiple data transmission options-Pulse, RS485 Modbus, 4G, NB-IoT, and LoRaWAN-allowing seamless integration into existing monitoring systems or new smart water networks. Flanged ends comply with international standards (ANSI, DIN, JIS, GB) to match your piping configuration.

Main Features

Stainless Steel Durability – Housing crafted from 304/316/316L stainless steel offers superior resistance to corrosion, rust, and wear, ensuring decades of reliable performance even in harsh environments .
Removable Measuring Insert – The internal turbine assembly can be extracted without breaking pipeline flanges, allowing quick maintenance, cleaning, or replacement with minimal downtime .
Helical Turbine Technology – The Woltman design provides excellent accuracy at high flow rates with low energy loss, ideal for continuous flow measurement in main pipelines .
Sealed Register Unit – The dry dial counter is hermetically sealed (IP68) to prevent fogging, condensation, and ingress of moisture, guaranteeing clear readability throughout its service life .
Built-in Debris Protection – An integrated stainless steel strainer safeguards the measuring mechanism from particles, reducing the risk of damage and prolonging operational stability .
Precision Bearing System – High-quality jewel bearings minimize friction and wear, ensuring consistent performance and extended service intervals .
Wide Measurement Range – With turndown ratios up to R200, the meter accurately captures both low nighttime flows and peak demand periods .
Flexible Installation – Compact face-to-face lengths available for DN50, DN80, and DN100 models to fit tight spaces .
High-Pressure Variants – Optional pressure ratings up to PN40/Class 300 available for specialized applications .

Remote Reading Options

Communication Type	Technology	Application Scenario	Key Advantages
Pulse Output	Reed switch / Electronic pulser	Local data collection, PLC integration, short-distance transmission	Cost-effective, compatible with existing systems, no network required
RS485 Modbus	RS485 / Modbus RTU protocol	Industrial automation, building automation, multi-device networking	Stable and reliable, supports Modbus protocol, long-distance transmission
4G	4G cellular network	Wide coverage, real-time transmission, no gateway required	Works anywhere with cellular coverage, ideal for remote or scattered sites
NB-IoT	Narrowband IoT	Deep coverage, low power consumption, operator network	Battery life 5-10 years, excellent building penetration, ideal for large-scale municipal deployment
LoRaWAN	Long Range Wide Area Network	Private network, campus/city-wide coverage	Self-managed network, no ongoing data fees, ideal for smart city projects

Note: All communication modules can be retrofitted at any time without violating calibration seals

Common Application Areas

product-2560-1440

Industry	Typical Usage
Urban Water Networks	Main transmission lines, district metering zones, pressure management points
Industrial Facilities	Process water, cooling circuits, utility monitoring, effluent measurement
Agriculture	Large-scale irrigation supply, farm water distribution
Power Generation	Cooling tower makeup, condenser circulation, boiler feed water
Commercial Complexes	Centralized water supply for hospitals, hotels, university campuses
Water Treatment	Raw water intake, treated water outflow, filter backwash lines

product-2560-1440

Working Principle & Ordering Information

1. How It Works:
Water flowing axially through the meter body drives a helical turbine. The rotational speed of this turbine is directly proportional to the flow velocity. A magnetic coupling transmits this motion to a sealed, dry-dial register, ensuring the reading mechanism never contacts the water. The result is precise measurement unaffected by external conditions.

2. Supply Details:

Minimum Order: Single units accepted; volume discounts apply for orders of 5 or more.
Lead Time: 15-25 days for standard models; 30-40 days for custom flange drilling or specialized materials.
Packaging: Heavy-duty cartons for individual units; wooden crates with foam supports for larger diameters (≥DN150) or bulk consignments.
Payment Terms: T/T, L/C, PayPal (samples), Alibaba Trade Assurance.
Shipping Options: Sea freight (FCL/LCL), air cargo, or express courier (DHL, FedEx, UPS) with full export documentation.

product-2560-1440